[INFO] fetching crate backhand 0.23.0...
[INFO] checking backhand-0.23.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate backhand 0.23.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate backhand 0.23.0
[INFO] finished tweaking crates.io crate backhand 0.23.0
[INFO] tweaked toml for crates.io crate backhand 0.23.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate backhand 0.23.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate backhand 0.23.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39d59ee9554172d23f39285c2561fe0b5a95175d6907dfe3621ec29c78120030
[INFO] running `Command { std: "docker" "start" "-a" "39d59ee9554172d23f39285c2561fe0b5a95175d6907dfe3621ec29c78120030", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39d59ee9554172d23f39285c2561fe0b5a95175d6907dfe3621ec29c78120030", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39d59ee9554172d23f39285c2561fe0b5a95175d6907dfe3621ec29c78120030", kill_on_drop: false }`
[INFO] [stdout] 39d59ee9554172d23f39285c2561fe0b5a95175d6907dfe3621ec29c78120030
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd95d28898ac1aaab57b5af9c1abcda7e1d70c6d18d0e2064ebb4bee33ff258f
[INFO] running `Command { std: "docker" "start" "-a" "dd95d28898ac1aaab57b5af9c1abcda7e1d70c6d18d0e2064ebb4bee33ff258f", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling syn v2.0.103
[INFO] [stderr]    Compiling cc v1.2.27
[INFO] [stderr]     Checking rustls-pki-types v1.12.0
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]     Checking zlib-rs v0.5.1
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]     Checking crc32fast v1.4.2
[INFO] [stderr]    Compiling rustls v0.23.28
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]     Checking webpki-roots v1.0.1
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking clap_builder v4.5.40
[INFO] [stderr]     Checking webpki-roots v0.26.11
[INFO] [stderr]     Checking no_std_io2 v0.9.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking libz-rs-sys v0.5.1
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]     Checking tokio v1.45.1
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]    Compiling liblzma-sys v0.4.4
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling proc-macro-crate v3.3.0
[INFO] [stderr]    Compiling libdeflate-sys v1.24.0
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking env_filter v0.1.3
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]    Compiling assert_cmd v2.0.17
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking predicates v3.1.3
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking env_logger v0.11.8
[INFO] [stderr]     Checking clap v4.5.40
[INFO] [stderr]     Checking bstr v1.12.0
[INFO] [stderr]     Checking backon v1.5.1
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking wait-timeout v0.2.1
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking solana-nohash-hasher v0.2.1
[INFO] [stderr]     Checking lz4_flex v0.11.5
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking xxhash-rust v0.8.15
[INFO] [stderr]     Checking tempfile v3.20.0
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]     Checking rustls-webpki v0.103.3
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking yoke v0.8.0
[INFO] [stderr]     Checking zerovec v0.11.2
[INFO] [stderr]     Checking zerotrie v0.2.2
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking thiserror v2.0.12
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling deku_derive v0.19.1
[INFO] [stderr]    Compiling test-log-macros v0.2.17
[INFO] [stderr]     Checking liblzma v0.4.2
[INFO] [stderr]     Checking libdeflater v1.24.0
[INFO] [stderr]     Checking tinystr v0.8.1
[INFO] [stderr]     Checking potential_utf v0.1.2
[INFO] [stderr]     Checking icu_locale_core v2.0.0
[INFO] [stderr]     Checking icu_collections v2.0.0
[INFO] [stderr]     Checking test-log v0.2.17
[INFO] [stderr]     Checking icu_provider v2.0.0
[INFO] [stderr]     Checking icu_normalizer v2.0.0
[INFO] [stderr]     Checking icu_properties v2.0.1
[INFO] [stderr]     Checking deku v0.19.1
[INFO] [stderr]     Checking zstd v0.13.3
[INFO] [stderr]     Checking backhand v0.23.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking ureq v2.12.1
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, u16>
[INFO] [stdout]   --> src/compressor.rs:23:45
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[derive(Copy, Clone, Debug, PartialEq, Eq, DekuRead, DekuWrite, Default)]
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u16, Infallible>
[INFO] [stdout]   --> src/compressor.rs:23:45
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[derive(Copy, Clone, Debug, PartialEq, Eq, DekuRead, DekuWrite, Default)]
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `DekuRead` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, u16>
[INFO] [stdout]   --> src/compressor.rs:23:45
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[derive(Copy, Clone, Debug, PartialEq, Eq, DekuRead, DekuWrite, Default)]
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, u16>
[INFO] [stdout]   --> src/compressor.rs:23:45
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[derive(Copy, Clone, Debug, PartialEq, Eq, DekuRead, DekuWrite, Default)]
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, u16>
[INFO] [stdout]   --> src/compressor.rs:23:45
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[derive(Copy, Clone, Debug, PartialEq, Eq, DekuRead, DekuWrite, Default)]
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, u16>
[INFO] [stdout]   --> src/compressor.rs:23:45
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[derive(Copy, Clone, Debug, PartialEq, Eq, DekuRead, DekuWrite, Default)]
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, u16>
[INFO] [stdout]   --> src/compressor.rs:23:45
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[derive(Copy, Clone, Debug, PartialEq, Eq, DekuRead, DekuWrite, Default)]
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, u16>
[INFO] [stdout]   --> src/compressor.rs:23:45
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[derive(Copy, Clone, Debug, PartialEq, Eq, DekuRead, DekuWrite, Default)]
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]   --> src/dir.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 | #[derive(Debug, DekuRead, DekuWrite, Clone, PartialEq, Eq)]
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/dir.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 | #[derive(Debug, DekuRead, DekuWrite, Clone, PartialEq, Eq)]
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `DekuRead` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, u16>
[INFO] [stdout]   --> src/inode.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[derive(Debug, DekuRead, DekuWrite, Clone, Copy, PartialEq, Eq)]
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u16, Infallible>
[INFO] [stdout]   --> src/inode.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[derive(Debug, DekuRead, DekuWrite, Clone, Copy, PartialEq, Eq)]
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `DekuRead` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, u16>
[INFO] [stdout]   --> src/inode.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[derive(Debug, DekuRead, DekuWrite, Clone, Copy, PartialEq, Eq)]
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, u16>
[INFO] [stdout]   --> src/inode.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[derive(Debug, DekuRead, DekuWrite, Clone, Copy, PartialEq, Eq)]
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, u16>
[INFO] [stdout]   --> src/inode.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[derive(Debug, DekuRead, DekuWrite, Clone, Copy, PartialEq, Eq)]
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, u16>
[INFO] [stdout]   --> src/inode.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[derive(Debug, DekuRead, DekuWrite, Clone, Copy, PartialEq, Eq)]
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, u16>
[INFO] [stdout]   --> src/inode.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[derive(Debug, DekuRead, DekuWrite, Clone, Copy, PartialEq, Eq)]
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, u16>
[INFO] [stdout]   --> src/inode.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[derive(Debug, DekuRead, DekuWrite, Clone, Copy, PartialEq, Eq)]
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, u16>
[INFO] [stdout]   --> src/inode.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[derive(Debug, DekuRead, DekuWrite, Clone, Copy, PartialEq, Eq)]
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, u16>
[INFO] [stdout]   --> src/inode.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[derive(Debug, DekuRead, DekuWrite, Clone, Copy, PartialEq, Eq)]
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]    --> src/inode.rs:155:17
[INFO] [stdout]     |
[INFO] [stdout] 155 | #[derive(Debug, DekuRead, DekuWrite, Clone, PartialEq, Eq)]
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/inode.rs:155:17
[INFO] [stdout]     |
[INFO] [stdout] 155 | #[derive(Debug, DekuRead, DekuWrite, Clone, PartialEq, Eq)]
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `DekuRead` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `backhand` (lib) due to 22 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "dd95d28898ac1aaab57b5af9c1abcda7e1d70c6d18d0e2064ebb4bee33ff258f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd95d28898ac1aaab57b5af9c1abcda7e1d70c6d18d0e2064ebb4bee33ff258f", kill_on_drop: false }`
[INFO] [stdout] dd95d28898ac1aaab57b5af9c1abcda7e1d70c6d18d0e2064ebb4bee33ff258f
